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EZ-TESTER® DS
Dual Line or Single Line DS1 Tester with DDS 4-Wire Local Loop Capability
Contact Electrodata at 1-800-441-6336
DUAL LINE T1 TESTING and DDS 4-WIRE LOCAL LOOP TESTING CAPABILITY
with OPTIONAL LINE PARAMETRIC TESTING in a SINGLE PACKAGE!
Electrodata's TTS 3, EZ-TESTER® DS combines the comprehensive dual or single line T1 testing features of the EZ-TESTER® QJ with out-of-service testing capability for 4-wire DDS communications equipment and circuits. Built to the same tried and true standards of the original EZ-TESTER, the EZ-TESTER DS provides complete support for DS0, T1, and DDS 4-wire local loop testing. The unit is available in two basic configurations: DDS 4-wire local loop testing with a single DS1 test port; and DDS 4-wire local loop with dual DS1 test ports. To complete the testing capabilities, the Line Parametrics Testing option can be added to each EZ-TESTER DS version at a reasonable cost, resulting in a test set that can support a broad range of testing needs in a single hand-held package. |
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4-WIRE DDS LOCAL LOOP TESTING IS INCLUDED WITH EVERY EZ-TESTER DS
While the DS1 test capabilities of the EZ-TESTER DS are typical of our dual-port DS1 test sets, the 4-wire DDS local loop feature is unique. As a primary feature of the EZ-TESTER DS, the local loop testing function of the EZ-TESTER DS provides full out-of-service testing capabilities for DDS 4-wire local loops. The test set can terminate the local loop, autoconfigure to the loop rate, identify existing test patterns on the primary channel, and confirm the status of the secondary channel and identify the test pattern it may be carrying. The test set will identify alarm and error conditions, transmit typical DDS test patterns, inject errors and alarms; decode control bytes, perform local or remote loopback functions, and even enables frame relay testing from a DDS 4-wire test point. (This 4-wire DDS local loop test feature should not be confused with the DDS test option, Option 11, that enables DDS testing from a T1 access point only.)
LINE PARAMETRICS TESTING IS AVAILABLE AS AN ADD-ON OPTION
The Line Paramaterics Testing option (Option 40) is used to qualify copper lines used in voice frequency service or digital service applications by measuring the electrical and physical characteristics of the line. The option allows the technician to make line voltage measurements and to analyze the line by measuring electrical characteristics, determining length, and counting load coils. The option includes a time domain reflectometer (TDR) function to locate impedance changes in the line that may indicate physical damage, and a spectrum analyzer function to help detect and identify noise sources that may be causing interference at different point in the T1 bandwidth. Also included are tests to perform noise measurements and to measure the level and frequency of signals present on the line.
Each test set weighs three pounds, is housed in a rugged metal case, contains rechargeable batteries, and can be operated in temperatures from below 0° F to 140°F.
EASY TO USE
The EZ-TESTER DS is designed to perform in-service monitoring and in-service or out-of-service testing on DS1 communications equipment and circuits, and out-of-service testing on DDS 4-wire local loop equipment and circuits with a guided easy-to-use menu structure. The EZ-TESTER DS features a large liquid crystal display that can handle hot or sub-freezing temperatures, a water resistant package, a built in speaker, and plainly marked front panel LED's, all in a rugged metal case. The LCD screen presents setup options, test results, and configuration setup screen. The test set is equipped with an internal speaker and a 2.5 mm headset connection. An optional noise cancelling headset is available for placing calls and for use while testing in high noise environments. The EZ-TESTER DS comes with the standard industry test patterns built in, and user defined patterns are supported. In addition, eight user defined test setups can be saved and are then available at the touch of a button.
THE EZ-TESTER DS IS FORWARD COMPATIBLE
This means that you can purchase the EZ-TESTER DS with the DDS 4-wire local loop testing and single line or dual line DS1 testing and then add more capabilities as your testing requirements expand without having to replace your unit or suffer expensive and complicated upgrade procedures. Most options are downloadable and only require a modem connection. Downloading is simple, using Electrodata's OnCall® feature built right into the test set. If a hardware upgrade is required, a same-day turn-around in the service center is easily scheduled. Currently, only the addition of MF (option 08) requires hardware upgrades. Best of all, there is NO CHARGE for software updates to existing options and the basic operating system. Electrodata protects your investment and keeps your cost of ownership low, from the initial purchase through the foreseeable future.
EZ-TESTER DS Options
The EZ-TESTER DS is available in two basic configurations and offers a wide range of options that can be ordered directly or added later as your testing needs expand. The basic instrument :
. Single DS1 with DDS 4-wire local loop
. Dual DS1 with DDS 4-wire local loop
The following DS1 options can be added at an affordable price:
Fractional T1 (FT1) - (Option 01)
The Fractional T1 option provides the ability to test contiguous and noncontiguous 56 x N and 64 x N fractional T1 circuits and equipment.
On-Screen Pulse Shape Analysis - (Option 02)
With the On-Screen Pulse Shape Analysis option, the EZ-TESTER DS will provide testing of T1 pulse waveforms. The test set will capture a pulse, measure its basic parameters and compare it to standard pulse masks if desired. For easy interpretation of results, the captured pulse, selected mask and a pass/fail indication are all displayed graphically.
ESF / SLC-96 Monitoring and Control - (Option 03)
This optional capability allows the monitoring and control of information in the Facility Datalink when ESF framing is used, or the SLC-96 datalink when SLC-96 framing is used. This includes the ability to detect or force PRMs, ASBs and alarms as well as far-end loop commands, maintenance messages and protection switch commands.
Performance Statistics Retrieval - (Option 04)
The EZ-TESTER DS provides an optional support capability for advanced Network Interface Units (NIUs) which gather performance data at a customer's premises. The EZ-TESTER DS can retrieve performance statistics and control these devices from an interface at the customer site, from a DSX location in the central office, or through a maintenance switch which supports a non-intrusive connection.
Addressable Repeater and Maintenance Switch Control - (Option 05)
Loopback and test procedures are greatly simplified when the Addressable Repeater and Maintenance Switch Control option is employed. Command and test sequences are accomplished using the EZ-TESTER DS's commands and its plain language interpretation of responses.
Dial / Supervision - (Option 06)
This option provides the necessary operations to originate or terminate a call into a digital switch or PBX from a DSX or other T1 access point. It also provides the ability to test Switched 56 services by establishing a data line through the public switched network to a test line or remote DSU/CSU. A user defined sequence of phone number plus access codes can be sent or captured along with signaling events such as a wink, off-hook or on-hook.
Computer Enhanced Testing (CET) - (Option 07)
The CET option expands the remote control capability of the EZ-TESTER DS and supports a user friendly environment for the PC user. Electrodata provides software, which operates within Windows®, to control an EZ-TESTER with the CET option.
MF Dial/Capture - (Option 08)
This hardware option supplements the Dial/Supervision option by enabling MF dial and digit capture with your EZ-Tester DS. This option must be installed at the factory.
Primary Rate ISDN - (Option 09)
This option is used to test Primary Rate ISDN circuits at the central office or at the customer location. It simulates the customer equipment and allows the placing and receiving of either data or voice calls. It will test 23B+D or 24B circuit configurations and the dual T1 configuration allows monitoring in both directions simultaneously using two receivers.
Terminal Emulation - (Option 10)
This option allows the EZ-Tester DS to interact as a terminal with HDSL and PMDNI Digital Network Interface units both in the central office and in the field. The advantage to you is that a separate terminal or PC is not required to access the wealth of information and capability provided by the HDSL and PMDNI hardware. This option enables field technicians to access this equipment without having to carry a separate terminal device.
DDS Channel Testing - (Option 11)
The DDS (Digital Data Service) Channel Testing option allows you to test DDS circuits and equipment from a T1 access point. This option offers full BERT capabilities using DDS-1 through DDS-6 stress patterns and 63, 127, 511 and 2047 pseudorandom patterns. It includes latching and non-latching loopback codes, and has the ability to detect and generate control codes. [Supports 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 Kbps data rates.] This option is used for DDS testing from a T1 access point and should not be confused with the DDS 4-wire local loop test feature using the front panel RJ48 jack.
GR-303 Test Access - (Option 12)
The GR-303 Test Access option provides functions for testing loop access systems as described in Bellcore's GR-303-CORE, "IDLC Generic Requirements, Objectives, and Interface." Capabilities: Captures and displays Time-slot Management Channel (TMC) and Embedded Operations Channel (EOC) data; Filters on layer (2 and 3), CRV, and abnormal cause codes with both pre and post capture capability and timestamps captured messages; Displays raw and decoded hybrid signaling (ABCD) codes. The dual T1 configuration allows monitoring in both directions simultaneously using two receivers.
If Option 12 and Option 3 are both installed, GR-303 Test Access will include ESF performance statistics retrieval.
If Option 12 and Option 10 are both installed, GR-303 Test Access will provide craft interface access via the RS-232 port.
SS#7 Capture / Analysis - (Option 13)
The SS#7 Capture / Analysis option provides functions for analyzing Signaling System #7 common channel signaling as described in Bellcore's GR-246-CORE, "Bell Communications Research Specification of Signaling System Number 7" on 56K and 64K SS7 link channels. In the MSU Analysis mode, the test set captures and time-stamps Message Signaling Units (MSU) that appear on the SS7 link channel. Captured messages, selected by pre- and post-capture filtering, can be displayed in detail on an "expanded" screen to show the contents of all available message fields. In the SU/MSU mode, the test set provides running totals on two seperate screens of Signaling Units (SU) and MSUs appearing on the link. During the monitoring period, the test set counts the messages as they are detected and continuously increments a series of counters that show the results as totals, subtotals, and percentage of message types. The SU Analysis mode also displays the number of message re-transmissions by counting inverted Forward Indicator Bits (FIB) and Backward Indicator Bits (BIB).
Frame Relay Testing - (Option 14)
The Frame relay testing option adds basic test and analysis capabilities to the EZ-TESTER DS for verifying link functionality and connectivity on permanent virtual circuits (PVC). With this option installed, the test set can automatically poll the link to identify the protocol: FRF-LMI, ANSI T1.617-D, or ITU-T Q.993-A, and report the status of DLCIs. The test set will provide real time statistical data for all or individual DLICs such as total frames detected; number of frame errors; number of FECN, BECN, and DE frames; total octets; and DLCI throughput. This option also enables the test set to test connectivity by initiating and responding to IP PINGs.
Add Second DS1 Port - (Option 19)
For units configured with a single DS1 test port, Option 19 adds a second port to allow dual line DS1 testing. This option is particularly useful during primary rate ISDN testing, allowing the user to monitor both lines simultaneously, or to perform a drop and insert operation without requiring a seperate receiver to monitor test results.
Line Parametric Testing - (Option 40)
The line parametric test option allows the technician to identify and isolate physical and electrical problems that may degrade span performance or create safety hazards. The Line Voltage Measurement feature confirms the presence of AC and DC voltage components that may be incorrect for span operation or dangerous to maintenance personnel. The Line Analysis feature identifies dry pair characteristics using line capacitance to compute approximate cable length and detect the presence of shorts. The Level / Frequency Measurements feature is used to determine the suitability of existing cable for T1 and DSL operation. The Noise Measurements feature tests dry pair longitudinal balance to identify the presence of split pairs and similar problems that may impact noise susceptibility. The Spectrum Analysis feature performs a frequency sweep of the line to assist in identifying likely sources of noise interference. The Time Domain Reflectometry (TDR) feature can be used to locate splices or physical damage to lines that causes impedance changes that may diminish line performance. The Test Lead Calibration feature is used to improve measurement accuracy by enabling the test set to compensate for test lead characteristics during measurement calculations. A Cable Charateristics Screen assures more accurate line measurement calculations by allowing the technician to select and enter standard cable types during test setup.
The Complete Package
The EZ-TESTER DS comes complete with a removable stand, neck strap, technical manual on CD, battery eliminator/charger, printer cable, and a padded carrying case with shoulder strap, and is covered by a standard one-year warranty.
To find out more about the EZ-TESTER DS, call toll-free 1-800-441-6336.
Specifications for the EZ-TESTER DS ®
DS1 SPECIFICATIONS
Electrical Interface
Connectors, RX, TX (2 sets) Bantam Jacks
Pulse Shape: Conforms to TR-TSY-000499, ITU Recommendation
G.703; AT&T Publications CB113, CB119, CB132,
CB143, PUB62508, and PUB62411 pulse shape
specifications when terminated in 100 ohms
and 0 LBO is selected
Line Code AMI, B8ZS
Line Build Out 0 dB, -7.5 dB, -15 dB
Input
Terminate DSX +6 dB to DSX -36 dB, 100 ohms
Monitor DSX -14 dB to DSX -40 dB, 100 ohms
Bridge DSX +6 dB to DSX -36 dB, >1000 ohms
Clock 1.544 MHz
Internal ±5 ppm
External ±300 ppm
Recovered ±300 ppm
Transmitter and Receiver
Framing Unframed, D3/D4, ESF, & SLC96*
Channel Formats 56x1, 64x1, Fractional T1 (56xN, 64xN) (opt. 01 required)
Test Patterns 2047, 2E15-1, 2E20-1, 2E23-1, QRSS, Bridge,
Multiple, All 0's, 1:7, 2 in 8, 3 in 24, Alt 1/0,
All 1's, T1-1, T1-2, T1-3, T1-4, T1-5, 55 Octet,
T1-Daly, DDS-1, DDS-2, DDS-3, DDS-4, DDS-5,
DDS-6, User defined patterns up to 2048 bits
Error Injection
Type BPV, Frame, CRC, Pattern
Error Rate Single, Fixed Rate, Burst
Alarms LOS, LOF, Yellow, AIS, Idle
DS0 SPECIFICATIONS
Interface
VF In/Out Connector 2.5mm Headset Jack
ESF/SLC DATALINK MONITORING AND CONTROL (Option 03)
ESF T1.403 Performance Report Messages (ANSI STANDARD)
Send Functions
Operating Mode Live, Fixed, or Unscheduled
PRM Selections
CRC Errors No errors, 1 error, >1 to 5 errors, >5 to 10 errors,
>10 to 100 errors, >100 319 errors, 320 errors
Application Specific Bits:
LB Payload Loopback Active
SL Controlled Slip 1
LV Line Code Violation
FE Framing Bit Error
SE Severely Errored Framing Bit Event
Unscheduled Messages Any, including Yellow Alarms
Receive Functions CRC Events, ASB Status, Unscheduled, Errored Seconds,
Severely Errored Seconds, Message Errors, Elapsed Time
SLC-96 Datalink Control and
Monitoring
Send Functions (Alarm and Maintenance Messages)
Alarms Major, Minor, Power/Miscellaneous
Shelf Alarms A, B, C, and D
Far-End Loopbacks A, B, C, D, and P
Maintenance Messages Idle, On-Hook/Seize, Proceed, Test Alarm
Protection Messages Idle, Line A RX, Line B TX, Line C TX, Line D TX,
Line B TX/RX, Line C TX/RX, Line D TX/RX
Receive Functions (Display decoded messages)
Alarms (Major, Minor, Power, Miscellaneous),
Shelf Alarms, Far-End Loopback, Maintenance Messages,
Protection Messages, Concentrator Messages (SLC 96 II)
PM TEST ACCESS (Option 04)
Operations Retrieve PM statistics, Clear PM Statistics,
Set PM Clock
LOOPBACK/SPAN CONTROL
Device Type CSU, NIU, Repeater and Maintenance Switch
(Requires Option 05)
User-Defined Loopback Codes Stores up to 8 with alphanumeric labels
Vendors
(Intelligent T1 span devices) (Contact factory for current list)
DIAL/SUPERVISION (Option 06)
Trunk Types E&M, Ground start, Loop start
Emulation FXS, FXO, SLC Station/Office
Dialing Mode Autodialing (up to 30 characters entered
manually and outpulsed automatically
Types of Dialing Pulse and DTMF (MF with opt. 08)
Dial Sequence Up to 30 digits
Store Telephone Numbers in Memory
Number of memory files 8
Length (Each number) Up to 30 digits
Alphanumeric Labels
(Each file) Up to 12 alphanumeric characters
Operation
Channel Supervision On/Off Hook and Ringing
Capture/Display Dialed Digits
(Pulsed/DTMF) Up to 30 digits
Wink Send momentary Off Hook signal
Wink Measurements Wink delay and duration of wink
Echo Disable Send 2100 Hz tone for 3 sec's to disable
echo cancellors
CCITT V.5554 DSU/CSU
Loopdown Codes Code sent for 4 minutes
PRIMARY RATE ISDN (Option 09)
D-Channel Selectable
Loop-Back Supports simultaneous call placement and receipt
to provide a loopback for voice or BERT testing
Interface Type 23B + D, NFASS
Call Type Voice Call
Data Call
56 Kbit/s
64 Kbit/s
N x 64 Kbit/s (opt. 01 required)
H0 - 6 B-channels or 384 Kbit/s (Option 01 req'd.)
H11 - 24 B-channels or 1.536 Mbit/s
Call Control AT&T, Northern Telecom, National ISDN-2
Dial Sequence Up to 30 digits
Store Telephone Numbers in Memory
Number of memory files 8
Length (Each number) Up to 30 digits
Alphanumeric Labels
(Each file) Up to 12 alphanumeric characters
Transaction Display Cause Value, Layer 2 Status, Call State
BERT
Patterns All 0's, All 1's, 1:7, 2 in 8, 2047, 2E15-1, QRSS,
55 Octet
Results BPV Errors, BIT Errors, Frame Errors, CRC Errors,
Elapsed time
Voice Channel Data Digital Milliwatt, Idle Code, Headset,
DTMF entry through touchpad
Status Display Layer 2 Status, Call State, Cause Value
(Both numeric and plain language)
Programmable Options Network Options, Facility Options, Calling Numbers
TERMINAL EMULATION (Option 10)
Interface Type RS-232 25-pin to 9-pin interconnect cable supplied
Display LCD screen of 32 characters by 20 lines
Virtual display of 80 characters by 24 lines
Emulation Auto, VT100, ASCII
Responses Standard character responses are provided
Equipment Supported Adtran, Inc.
HDSL Central Office Customer Premises Unit
Models: HTU-R, T400HTU-R, HFAC
PairGain Technologies, Inc.
HDSL Central Office and Customer Premises Unit
Models:HLU-231, 319, 388, 611, 612, D41;
HRU-412, 512; HLIU-960; HDU-451
Teltrend, Inc.
PMDNI Digital Network Interface
DDS CHANNEL TESTING (Option 11, T1 connection point)
DS0-A Channel Rates 2.4 Kbps, 4.8 Kbps, 9.6 Kbps, 19.2 Kbps,
38.4 Kbps, 56 Kbps, and 64 Kbps
Loopbacks
(Latching and alternating) Channel, DSU, OCU, DS0-DP, NIE, 8-bit user defined
Control Codes Repeater Release, Idle, Abnormal Station,
Mux-Out-of-Sync, Unassigned MUX Channel,
Test Code, Test Alert, MJU Alert, Loopback Enable,
Far-End-Voice, Transition in Progress, Block Code,
Release Code, MAP0 Code, MAP1 Code,
Eight-bit user defined
BERT Patterns 63, 127, 511, 2047, 2E15-1, 2E20-1, QRSS, All 0's,
1:7, 2 in 8, 3 in 24, Alt 1/0, All 1's, T1-1, T1-2,
T1-3, T1-4, T1-5, 55 Octet, T1-Daly, DDS-1, DDS-2,
DDS-3, DDS-4, DDS-5, DDS-6, User defined patterns
up to 2048 bits
BERT Results BPV, Bit, Frame, CRC Errors, Elapsed Time
DDS 4-WIRE LOCAL LOOP
Electrical Interface
Connector DDS standard 8-pin RJ48S
Operating Mode CSU/DSU, OCU, Metal Loop, Metal Short emulation
Transmitter and Receiver
Primary Channel Compatible with AT&T PUB 62310
Secondary Channel Bellcore TR-NPL-000157
Line Build Out 0 dB, -3 dB, -6 dB, -9 dB
Primary Channel Rates Rates 2.4 Kbps, 4.8 Kbps, 9.6 Kbps, 19.2 Kbps,
38.4 Kbp/s, 56 Kbps, 64 Kbps
Clock Internal, Network
DDS Loop Codes CSU, V.54
Test Patterns
Primary Channel 63, 127, 511, 2047, 2E15-1, 2E20-1, QRSS,
All 0's, 1:7, 2 in 8, 3 in 24, Alt 1/0's
All 1's, T1-1, T1-2, T1-3, T1-4, T1-5,
55 Octet, T1-Daly, DDS-1, DDS-2, DDS-3,
DDS-4, DDS-5, DDS-6, User
Secondary Channel Idle, 63, 511, 2047
DDS Error Injection Types BPV, Frame, Primary Channel Pattern
Secondary Channel Pattern
DDS Alarms LOS, LOF, Block Code, Release Code,
Zero Code Suppression, Loss of Sealing Current,
Control Mode Idle, DSU Loopback, OCU Loopback
PRINTING
Print Functions Last Results, Captured Events, Current Setup,
User Setups, User Test Patterns, Captured Channel Data,
Retrieved PM Data
Captured Events
Types of Events
(Input Signal) Alarm changes, Errored Second, Severely Errored Second,
DS1 Frame Slip
Number of Events 100 to 1500 (Depending on type of event)
Event Triggers Automatic, Selectable, Manual
Printer Interface See AUXILIARY PORT
AUXILIARY PORT
Function RS-232 Interface/Remote Control or Printer
Printer Width 80 columns
Connector 25-pin D female
Type of Interface DTE or DCE
Transmission Speeds 1200, 2400, 9600, 14.4 K, 19.2 K, 28.8 K
Bits per Character 7 or 8
Parity Odd, Even, or None
Stop Bits 1 or 2
POWER
Batteries Rechargeable nickel metal hydride (NiMH)
Battery Life Basic unit - 4 hours/charge
AC Operation 100 - 240 VAC, 50/60 Hz (PS-6)
PHYSICAL SPECIFICATIONS
Size 10.2"L x 3.8"W x 3"H
Weight 3 lbs. (1.35 kilograms)
Display Screen Backlit LCD, 24 lines x 32 characters
Operating Temperature -20° C to +60° C
Storage Temperature -30° to + 90° C
Humidity 10% to 90% non-condensing
Specifications subject to change without notice.
*SLC is a registered trademark of AT&T.
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EZ-Tester DS
